Contrast enhancement filters are able to achieve a higher level of contrast by permitting only certain wavelengths of light from a display device to pass through. This enables display readability even under challenging conditions. SCHOTT’s new IR filter glasses VG20 and BG60 - BG64 are designed to perform in difficult environments and deliver extraordinary image quality for reliable performance, in surveillance cameras, for instance. Some optical filter glasses are used for IR light protection due to their high blocking and angle independence, or as IR pass filters that block visible light.

As one of the hardest, most durable, scratch- and shock-resistant materials, sapphire is used to protect optical systems such as surveillance cameras and detectors, for instance.
Similarly, infrared chalcogenide glasses are used for targeting systems.

All of these IR-materials are also available as customized components.